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Subjects

JAVASCRIPTHTMLCSSPYTHONSQLJAVACPPCSHARPPHPTYPESCRIPTCRUBYGOSWIFTKOTLINRUSTRBASHSCALAOBJECTIVE-CDARTPERLLUAMATLABXMLJSONMARKDOWNASSEMBLYLATEXYAMLSOLIDITYBLOCKCHAIN

Topics

PHP Basics

Introduction to PHPInstalling PHPPHP SyntaxPHP CommentsPHP VariablesPHP Echo / PrintPHP Data TypesPHP StringsPHP NumbersPHP ConstantsPHP OperatorsPHP If...Else...ElseifPHP SwitchPHP LoopsPHP FunctionsPHP ArraysPHP Superglobals

PHP Forms

PHP Form HandlingPHP Form ValidationPHP Form RequiredPHP Form URL/E-mailPHP Form Complete

PHP Advanced

PHP Date and TimePHP IncludePHP File HandlingPHP File Open/ReadPHP File Create/WritePHP File UploadPHP CookiesPHP SessionsPHP FiltersPHP Filters AdvancedPHP Callback FunctionsPHP JSONPHP Exceptions

PHP OOP

PHP OOP IntroPHP Classes/ObjectsPHP ConstructorPHP DestructorPHP Access ModifiersPHP InheritancePHP ConstantsPHP Abstract ClassesPHP InterfacesPHP TraitsPHP Static MethodsPHP Static PropertiesPHP NamespacesPHP Iterables

PHP Database

PHP MySQL DatabasePHP Connect to MySQLPHP Create MySQL DatabasePHP Create MySQL TablePHP Insert MySQL DataPHP Get Last Inserted IDPHP Insert Multiple RecordsPHP Prepared StatementsPHP Select MySQL DataPHP Delete MySQL DataPHP Update MySQL DataPHP Limit MySQL Data

PHP XML

PHP XML ParsersPHP SimpleXML ParserPHP SimpleXML - GetPHP XML ExpatPHP XML DOM

PHP Security

PHP SecurityPHP Password HashingPHP E-mail InjectionPHP Cross Site Scripting (XSS)

PHP Best Practices

PHP Coding StandardsPHP Error HandlingPHP Performance OptimizationPHP Debugging TechniquesPHP Unit Testing

PHP and Web Services

PHP AJAX IntroductionPHP AJAX PHPPHP AJAX DatabasePHP AJAX XMLPHP AJAX Live SearchPHP AJAX Poll

PHP Extensions

PHP cURLPHP GDPHP XML-RPCPHP Multibyte String

Installing PHP

PHP is a popular server-side scripting language used for web development. Before you can start coding in PHP, you need to install it on your system. This guide will walk you through the process of installing PHP on different operating systems.

Windows Installation

Installing PHP on Windows is straightforward:

  1. Download the PHP installer from the official PHP website.
  2. Run the installer and follow the on-screen instructions.
  3. Add PHP to your system's PATH environment variable.

After installation, verify PHP by opening a command prompt and typing:

php -v

macOS Installation

macOS comes with PHP pre-installed, but it might not be the latest version. To install or update PHP:

  1. Install Homebrew if you haven't already.
  2. Open Terminal and run:
brew install php

Linux Installation

For Ubuntu or Debian-based systems, use the following commands:

sudo apt update
sudo apt install php

For CentOS or Fedora, use:

sudo yum install php

Verifying Installation

After installation, verify PHP by running:

php -v

This command displays the installed PHP version and other relevant information.

Configuring PHP

Once PHP is installed, you might need to configure it. The main configuration file is php.ini. Its location varies depending on your operating system and installation method.

Common Configuration Tasks

  • Setting the timezone
  • Adjusting memory limits
  • Enabling or disabling extensions

Remember to restart your web server after making changes to php.ini.

Troubleshooting

If you encounter issues during installation:

  • Ensure your system meets the minimum requirements for PHP.
  • Check for conflicting software or previous PHP installations.
  • Consult the official PHP documentation or community forums for specific error messages.

Next Steps

After successfully installing PHP, you're ready to start coding! Consider exploring these related topics:

Remember, installing PHP is just the beginning. Regular practice and exploration of PHP's features will help you become proficient in this versatile language.